Journal
ADVANCED SCIENCE
Volume 7, Issue 24, Pages -Publisher
WILEY
DOI: 10.1002/advs.202002586
Keywords
interface engineering; perovskites; ultraflexible; X‐ ray detectors
Categories
Funding
- European Community through the POR-FESR FORTRESS project [I38D18000150009 (PG/2018/629121)]
- Austrian Academy of Science
- Austrian Research Promotion Agency (FFG) [Flex!PV-2.0-85360]
- European Research Council Starting Grant GEL-SYS [757931]
- Linz Institute of Technology (LIT) Soft Electronics Laboratory [LIT013144001SEL]
- Austrian Science Foundation (FWF)
- Wittgenstein Prize [Z222 N19]
- European Research Council (ERC) [757931] Funding Source: European Research Council (ERC)
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X-ray detectors play a pivotal role in development and advancement of humankind, from far-reaching impact in medicine to furthering the ability to observe distant objects in outer space. While other electronics show the ability to adapt to flexible and lightweight formats, state-of-the-art X-ray detectors rely on materials requiring bulky and fragile configurations, severely limiting their applications. Lead halide perovskites is one of the most rapidly advancing novel materials with success in the field of semiconductor devices. Here, an ultraflexible, lightweight, and highly conformable passively operated thin film perovskite X-ray detector with a sensitivity as high as 9.3 +/- 0.5 mu C Gy(-1) cm(-2) at 0 V and a remarkably low limit of detection of 0.58 +/- 0.05 mu Gy s(-1) is presented. Various electron and hole transporting layers accessing their individual impact on the detector performance are evaluated. Moreover, it is shown that this ultrathin form-factor allows for fabrication of devices detecting X-rays equivalently from front and back side.
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